Keysight U1190A Series User manual

Keysight U1190A Series
Handheld Clamp Meter
Quick Start
Guide

Contacting Keysight
www.keysight.com/find/assist
(worldwide contact information for
repair and service)
Safety Information
This meter is safety-certified in
compliance with EN 61010-1
(IEC 61010-1:2001 and IEC/EN
61010-2-032:2002) for a CAT III
600 V and CAT IV 300 V pollution
degree 2 environment.
EMC is designed in compliance
with IEC 61326-1:2005/EN
61326-1:2006. Use with standard
or compatible test probes.
Safety Notices
CAUTION
A CAUTION notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly
performed or adhered to, could
result in damage to the product or
loss of important data. Do not
proceed beyond a CAUTION notice
until the indicated conditions are
fully understood and met.
WARNING
A WARNING notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly
performed or adhered to, could
result in personal injury or
death. Do not proceed beyond a
WARNING notice until the
indicated conditions are fully
understood and met.
Safety symbols
Earth (ground) terminal
Equipment protected
throughout by double
insulation or reinforced
insulation
Caution, risk of electric
shock
Caution, risk of danger
(refer to the instrument
manual for specific Warning
or Caution information)
Application around and
removal from HAZARDOUS
LIVE conductors is
permitted
Category III 600 V
overvoltage protection
Category IV 300 V
overvoltage protection
CAT III
600 V
CAT IV
300 V
2 Keysight U1190A Series Quick Start Guide
For further safety information details, refer to the
Keysight U1190A Series Handheld Clamp Meter User’s Guide.
ENGLISH

Keysight U1190A Series Quick Start Guide 3
ENGLISH
Verify that you received the following items in the
shipment of your clamp meter:
✔Test leads with 4 mm tips
✔1.5 V AAA alkaline battery
✔K-type thermocouple (only for U1194A)
✔Soft carrying case
✔Certificate of Calibration
If any item is missing or damaged, keep the
shipping materials and contact the nearest
Keysight Sales Office.
NOTE
The descriptions and instructions in this guide apply
to the U1191A, U1192A, U1193A, and U1194A
handheld clamp meters.
The model U1194A appears in all illustrations.
All related documents and software are available for
download at www.keysight.com/find/hhTechLib.

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Install the Batteries
Your clamp meter is powered by two 1.5 V AAA
alkaline batteries (included with the shipment).
1Turn the clamp meter OFF and remove the
test leads from the terminals.
2Loosen the screw on the battery cover with a
suitable Phillips screwdriver.
3Remove the battery cover and observe the
polarity markings.
4Insert the batteries and replace the battery
cover and screw.

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ENGLISH
Power ON the Clamp Meter
To power ON your clamp meter, turn the rotary
switch from the OFF position to any other
position.
Using the Wire Separator and Hook
Mesh of
wires or
cables
1Open the clamp
jaw slightly to
reveal the wire
separator tip.
2Separate the
desired wire or
cable by
hooking it in
the clamp jaw.
3Secure the
wire or cable
and read the
measurement.

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The Clamp Meter at a Glance
Hold/MaxMin button
Function buttons
Rotary switch
Display screen
Input terminals
Front view
Clamp jaw
Jaw markings
Handle
Battery cover
Flashlight
Hand guard
Rear view

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Understanding the Rotary Switch
NOTE
Some rotary switch positions have a shifted
function printed in orange. Press to switch
between the shifted and primary function.
Legend Functions shown
in the primary display U1194A U1193A U1192A U1191A
Off ✔✔✔✔
AC A ✔✔✔✔
DC A ✔
Frequency (current path) ✔✔✔
AC V ✔✔✔✔
Frequency (voltage path) ✔✔✔
DC V ✔✔✔✔
Resistance ✔✔✔✔
Continuity ✔✔✔✔
Diode ✔✔✔✔
Capacitance ✔✔✔
Non-contact voltage
detector ✔✔✔
Temperature ✔
DC μA✔
AC μA✔
WARNING
Remove the test leads from the measuring source or
target before changing the rotary switch position.

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Understanding the Function Buttons
Legend Key response when pressed for:
Less than 1 second More than 1 second
Freezes the present reading in
the display.
Records the maximum,
minimum, or average value.
Switches between the primary
and shifted functions. -
Turns the LCD backlight on or
off.
Turns the LED flashlight on or
off.[a]
Sets the null/relative mode. -
[a] The LED flashlight function is available for U1194A/U1193A/U1192A models
only.

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Non-contact voltage detector (Vsense)
If the presence of AC voltage is sensed, the clamp
meter’s beeper will sound.
Press to change the Vsense sensitivity from
Hi.SE (high sensitivity) to Lo.SE (low sensitivity)
and vice versa.
3
4
Voltage source
AC
2
1
WARNING
Voltage could still be present even if there is no alert
indication. Never touch live voltages or conductors
without the necessary insulation protection.

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Performing Measurements
Current measurement
Press the handle to open the clamp jaw. Clamp
around a conductor and ensure that the
conductor fits the markings on the clamp jaw.
Press to cycle between AC current, DC
current, or to read the frequency of the AC
current.
3
1
2
4
5
Conductor
WARNING
Ensure that the test leads are disconnected from the
input terminals when measuring current with the
clamp meter’s jaw.
CAUTION
Ensure that the clamp meter measures only one
conductor at a time. Measuring multiple
conductors may cause inaccuracy in measurement
reading due to the vector sum of currents flowing in
the conductors.

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AC voltage measurement
Set up your clamp meter to measure AC voltage
as shown. Probe the test points and read the
display.
Press to measure the frequency of the AC
voltage source.
Current
flow
Current
flow
Correct Incorrect
✔✘
2
4
AC
Voltage source
1
3

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DC voltage measurement
Set up your clamp meter to measure DC voltage
as shown. Probe the test points and read the
display.
DC
3
Voltage source
1
2

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Resistance measurement
Set up your clamp meter to measure resistance as
shown. Probe the test points and read the display.
3
Resistor
1
2
CAUTION
To avoid possible damage to your clamp meter or to
the equipment under test, disconnect the circuit
power and discharge all high-voltage capacitors
before measuring resistance or testing for
continuity.

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Continuity test
Set up your clamp meter to test for continuity as
shown. Press to switch to the continuity test
function ( is shown on the display).
4
1
3
CLOSED
OPEN
2
NOTE
The beeper will sound and the backlight will flash
when the circuit-under-test is shorted.

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Diode test
Set up your clamp meter to test diodes as shown.
Probe the test points and read the display.
3
Forward-bias
diode
1
2
NOTE
This test sends a current through a semiconductor
junction, and then measures the junction’s voltage
drop. A good diode allows current to flow in one
direction only.

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Capacitance measurement
Set up your clamp meter to measure capacitance
as shown. Press to switch to the capacitance
measurement function.
2
4
Capacitor
1
3
CAUTION
To avoid possible damage to the clamp meter or to
the equipment under test, disconnect circuit power
and discharge all high-voltage capacitors before
measuring capacitance. Use the DC V function to
confirm that the capacitor is fully discharged.

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Temperature measurement (U1194A only)
The clamp meter uses a type-K thermocouple
probe for measuring temperature. Press to
switch to the temperature measurement function.
2
4
1
3
K-type
thermocouple
probe
Heat source
WARNING
Do not connect the thermocouple to electrically live
circuits. Doing so will potentially cause fire or electric
shock.

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Current measurement up to μA (U1194A only)
Set up your clamp meter to measure low current
as shown. Press to switch to the current
measurement function.
AC
2
4
1
Voltage source
DC
Voltage source
LOAD
3
LOAD
WARNING
Always use the proper function, range, and terminals
for current measurements. Use the clamp jaw for
currents above 600 μA.

This information is subject to change
without notice. Always refer to the
Keysight website for the latest revision.
© Keysight Technologies 2011-2021
Edition 4, February 2021
Printed in Malaysia

U1191-90001
www.keysight.com